For centuries the Atlantic Ocean kept the Americans from ____ (discover) by the people of Europe.答案being discovered,被动语态?为何前面要用being,而不是were discovered?而且be为何要变成进行时?

For centuries the Atlantic Ocean kept the Americans from ____ (discover) by the people of Europe.答案being discovered,被动语态?为何前面要用being,而不是were discovered?而且be为何要变成进行时?
For centuries the Atlantic Ocean kept the Americans from ____ (discover) by the people of Europe.
答案being discovered,被动语态?为何前面要用being,而不是were discovered?而且be为何要变成进行时?

For centuries the Atlantic Ocean kept the Americans from ____ (discover) by the people of Europe.答案being discovered,被动语态?为何前面要用being,而不是were discovered?而且be为何要变成进行时?
这句话的意思是几个世纪以来大西洋阻止了美国被欧洲人发现.from是介词所以后面要用ing形式,而美国是被发现的,所以要用被动形式.和在一起就是being加被动（v-ed）,being discovered

之前有kept
keep的句式为keep somthing from something 避免某物得到某物
因此要把discover改为被动形态动名词
即为being discovered
希望对你有帮助

大西洋不是一下子就能被研究透彻的吧 还有很多未知的东西需要一直探索 因此用being 表示持续进行